CN100510492C - Tank vehicle mounted breathing type safety valve - Google Patents
Tank vehicle mounted breathing type safety valve Download PDFInfo
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- CN100510492C CN100510492C CNB2006101047621A CN200610104762A CN100510492C CN 100510492 C CN100510492 C CN 100510492C CN B2006101047621 A CNB2006101047621 A CN B2006101047621A CN 200610104762 A CN200610104762 A CN 200610104762A CN 100510492 C CN100510492 C CN 100510492C
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- exhalation
- valve body
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Abstract
The invention relates to a breath safe valve used in the vehicle of railway. The valve body contains an output valve fin, while the output spring is embedded between the valve cover and the output valve fin. The space between the inlet valve fin and the output valve fin is arranged with an inlet valve sealing ring. The guide axle is contacted with the guide sheath. The adsorption spring base is at the outer end of the guide axle of inlet valve fin. The adsorption spring is embedded between the guide sheath and the adsorption spring base at the center of output valve fin. The sealing face between the output valve fin and the valve body is flat while the engage space is 0.08-0.25mm and the guide height h of output valve fin is 11-21mm. The sealing face between the output valve fin and the valve body is in the same plane with the lower end face of inlet valve fin, or higher than the lower end face. The invention has high reliability and stability.
Description
Technical field
The present invention relates to a kind of breathing relief valve, relate in particular to a kind of Railway tank car breathing relief valve.
Background technique
At present, the employed breathing relief valve of the general Railway tank car of China is to design the breathing relief valve in the HT272-00-91 of nineteen sixty.Because the technical development of Railway tank car is tending towards at a high speed, heavy duty, the breathing relief valve of HT272-00-91 can not satisfy the security needs of Railway tank car.Concrete shortcoming is as follows:
1. spring when design parameter is selected unreasonablely, and the amount of deformation of spring surpasses 80% of test amount of deformation when causing valve working, has a strong impact on the stable of respiration type valve exhalation pressure.
2. suck the air-flow long flow path, airflow direction is wanted turnback, and the gas current friction resistance is bigger, has directly limited intake.
3. the sealing surface at exhalation flap and valve body Spielpassung place is lower than the flap lower end surface that sucks flap, and flow coefficient is little, generally only is about 0.2.
3. safety valve opening structure coupling is unreasonable, moves dumbly, easily produces misoperation, and poor reliability causes a hidden trouble to transportation safety.
4. the sealing surface of valve body and exhalation flap is a conical surface seal, and flap and valve body easily deposit dust, easy ponding, and it is stifled to produce rust, influences exhalation reliability of operation and sealing.
5. phenomenons such as the structural design of flap guiding pair is unreasonable, and seal ring easily was blown when flap was opened, and the generation flap is stuck.
6. main parts size is that carbon steel material is made, and the plating zinc on surface layer easily comes off, and easily produces corrosion, has a strong impact on the normal operation to the respiration type valve.
7. the seal ring material is fixed, and is usually incompatible with medium, easily causes seal failure, dielectric leakage.
8. can not satisfy Railway tank car at a high speed, in the heavy haul transport to the requirement of technical orders such as reliability, sealing.
Summary of the invention
The object of the present invention is to provide a kind of tank vehicle mounted breathing type safety valve, it is limited that it has solved in the background technique intake, the technical problem that the stability of operation and reliability are relatively poor.
Technical solution of the present invention is:
A kind of tank vehicle mounted breathing type safety valve comprises tubbiness valve body 1, is arranged at the valve gap 8 of valve body 1 upper end; Be arranged in the valve body 1, be embedded in exhalation spring 4 between valve gap 8 and the exhalation flap 2 with exhalation flap 2, two ends of valve body 1 Spielpassung; Suction flap 3 with exhalation flap 2 Spielpassung, be arranged at the suction spring seat 7 of the axis of guide 11 outer ends that suck flap 3, be arranged at the axis of guide 11 the other end outsides, be embedded in suction spring 6 between guide sleeve 12 and the suction spring seat 7 with guide sleeve 12, two ends of the axis of guide 11 contact matching; Described suction flap 3 is provided with suction valve seal ring 15 with the Spielpassung place of exhalation flap 2; Described suction valve seal ring 15 is embedded in the suction valve seal groove 14 that sucks on the flap 3; Described exhalation flap 2 is provided with exhalation valve seal ring 18 with the Spielpassung place of valve body 1, and this exhalation valve seal ring 18 is embedded in the exhalation valve seal groove 17 on the exhalation flap 2; It is characterized in that: described exhalation flap 2 is the plane with the sealing surface 19 at valve body 1 Spielpassung place, and the gap between described exhalation flap 2 and the valve body 1 is 0.08-0.25mm; The guiding height h of described exhalation flap 2 is 11-21mm.According to traffic requirement, exhalation flap 2 can be positioned at same plane with the sealing surface 19 at valve body 1 Spielpassung place with the lower end surface 20 that sucks flap 3, and its flow coefficient is 0.3 ± 0.02.When the sealing surface 19 at exhalation flap 2 and valve body 1 Spielpassung place was higher than the lower end surface 20 that sucks flap 3, flow coefficient can reach 0.4-0.5.
Gap between above-mentioned exhalation flap 2 and the valve body 1 thinks that 0.1-0.2mm is good.The gap is little, and flap is prone to stuck phenomenon; The gap is big, easily produces vibration, and inhalation flow is limited.
The bottom of above-mentioned valve body 1 is to be provided with Air Filter 13 for good.
Above-mentioned exhalation valve seal groove 17 is good to adopt single dovetail groove.
Above-mentioned valve gap 8 can be threaded with valve body 1 by internal thread or outside thread.
Above-mentioned valve gap 8 is advisable so that valve gap locking nut 5 to be set with the joint of valve body 1.
Above-mentioned suction spring seat 7 is advisable to be threaded with the axis of guide 11.
The outer end of above-mentioned suction spring seat 7 can be provided with tightening nut 10 or fixed pin 9, also can after suction spring seat 7 outer ends are provided with tightening nut 10 fixed pin 9 be set again.
Above-mentioned valve body 1, valve seat 16, exhalation flap 2, suction flap 3, suction spring seat 7, the axis of guide 11 and guide sleeve 12 are all good to adopt stainless steel to be made as,
The present invention has the following advantages:
When the exhalation flap when sucking the valve seat of part, increase the guiding height, select suitable matching gap for use, make not only that to suck the flap return accurate, and have position-limiting action, can effectively guarantee the stable of inhalation flow under the abnormal conditions.
2. Mi Feng reliability height.The sealing surface of valve body and exhalation flap is a plane sealing, rustless stifled phenomenon, thus improved the reliability of sealing.Have single dovetail groove on the exhalation flap, seal ring in use can not blown off, and has further guaranteed sealing reliability.
3. suck area by increasing, change the suction airflow direction, shorten sucking air flow path, reduce sucking the gas current friction resistance, increased the intake of breathing relief valve.
4. parameters such as the spring rate of preferably breathing out have increased the exhalation amount of safety valve, and the amount of deformation of spring can be guaranteed the stable of pressure of breathing out.
5. Air Filter can prevent dust deposit, to guarantee breathe out reliability of operation and sealing.
6. suck flap and spring seat employing locking nut compress be connected, be threaded or pin fastening, be convenient to suck the adjustment of integral pressure.
7. the exhalation flap can be realized big flow with the structure that sucks flap.Can choose exhalation valve lobe lower plane and suck the flap lower plane according to concrete traffic requirement, or exhalation flap lower plane is higher than suction flap lower plane on same plane.
8. main parts size all adopts stainless steel, can corrosion, can guarantee the normal operation of respiration type valve.The seal ring material is chosen according to medium character, and the compatibility of medium and seal ring material is good, has also guaranteed the reliability of sealing.
Description of drawings
Fig. 1 is the structural representation of invention.
The drawing reference numeral explanation: the 1-valve body, 2-exhalation flap, 3-sucks flap, 4-exhalation spring, 5-valve gap locking nut, 6-sucks spring, and 7-sucks spring seat, 8-valve gap, the 9-fixed pin, 10-tightening nut, the 11-axis of guide, the 12-guide sleeve, 13-Air Filter, 14-suction valve seal groove, 15-suction valve seal ring, 16-valve seat, 17-exhalation valve seal groove, 18-exhalation valve seal ring, the 19-sealing surface, 20-sucks the lower end surface of flap.
Embodiment
Referring to accompanying drawing 1, the upper end of tubbiness valve body 1 of the present invention is provided with valve gap 8, and valve gap 8 can be threaded with valve body 1 by internal thread or outside thread, and valve gap 8 is advisable so that valve gap locking nut 5 to be set with the joint of valve body 1.When the quality requirements of medium is higher, can Air Filter 13 be set in the bottom of valve body 1, prevent dust deposit, to guarantee breathe out reliability of operation and sealing.Exhalation flap 2 is arranged in the valve body 1, with valve body 1 Spielpassung.The gap is little, and flap is prone to stuck phenomenon; The gap is big, easily produces vibration, and inhalation flow is limited.Gap between exhalation flap 2 and the valve body 1 can be 0.08-0.25mm.Gap between exhalation flap 2 and the valve body 1 thinks that 0.1-0.2mm is good.Exhalation flap 2 increases the guiding height, selects suitable matching gap for use when sucking the valve seat of part, makes not only that to suck flap 3 returns accurate, and has position-limiting action, can effectively guarantee the stable of inhalation flow under the abnormal conditions.According to traffic requirement, exhalation flap 2 can be positioned at same plane with the sealing surface 19 at valve body 1 Spielpassung place with the lower end surface 20 that sucks flap 3, and its flow coefficient is 0.3 ± 0.02.When the sealing surface 19 at exhalation flap 2 and valve body 1 Spielpassung place was higher than the lower end surface 20 that sucks flap 3, flow coefficient can reach 0.4-0.5.The guiding height h of exhalation flap 2 is 11-21mm.Exhalation spring 4 two ends are embedded between valve gap 8 and the exhalation flap 2.Suck flap 3 and exhalation flap 2 Spielpassung, suck spring seat 7 and be arranged at the axis of guide 11 outer ends that suck flap 3, suck spring seat 7 and be advisable to be threaded with the axis of guide 11, it is convenient to suck the adjustment of Set pressure.The outer end that sucks spring seat 7 can be provided with tightening nut 10 or fixed pin 9, also can after suction spring seat 7 outer ends are provided with tightening nut 10 fixed pin 9 be set again.Guide sleeve 12 is arranged at the axis of guide 11 the other end outsides, with the axis of guide 11 contact matching.Sucking spring 6 two ends is embedded between the guide sleeve 12 and suction spring seat 7 at exhalation flap 2 centers, suction valve seal ring 15 is arranged at the Spielpassung place that sucks flap 3 and exhalation flap 2, and suction valve seal ring 15 is embedded in the suction valve seal groove 14 that sucks on the flap 3.Exhalation flap 2 is provided with exhalation valve seal ring 18 with the Spielpassung place of valve body 1, and exhalation valve seal ring 18 is embedded in the exhalation valve seal groove 17 on the exhalation flap 2, and exhalation valve seal ring 18 in use can not blown off, and can guarantee effective sealing.It is good that exhalation valve seal groove 17 adopts single dovetail groove, and then exhalation valve seal ring 18 in use can not blown off, and has further guaranteed sealing reliability.The axis of guide 11 and guide sleeve 12 contact matching, guide sleeve 12 can guarantee to suck flap 3 reliable reset, has position-limiting action simultaneously, can effectively guarantee the stable of inhalation flow.Exhalation flap 2 is a plane sealing with the sealing surface 19 at valve body 1 Spielpassung place, rustless stifled phenomenon, thus improved the reliability of sealing, solved the stifled problem of rust, also improved reliability.The utility model component except that exhalation spring 4, suck spring 6, suction valve seal ring 15 and the exhalation valve seal ring 18, all good to adopt stainless steel to be made as, it can thoroughly solve corrosion problem and the zinc coat problem that comes off, and can guarantee the normal operation of respiration type valve.The seal ring material is chosen according to medium character, and the compatibility of medium and seal ring material is good, has also guaranteed the reliability of sealing.
Of the present utility model being connected and fixed by the valve seat 16 that is fixed with one with valve body 1 realized.During exhalation, container inner pressure promotes exhalation flap 2 and sucks flap 3 to overcome on the spring force of exhalation spring 4 and move, and the side opening that medium passes valve body 1 in the container flows out, and reaches the pressure release effect.During suction, atmospheric pressure promotion suction flap 3 overcomes the spring force that sucks spring 6 and moves down, and the side opening that atmosphere passes valve body 1 flows into from container, reaches the pressure release effect.
Claims (5)
1. a tank vehicle mounted breathing type safety valve comprises tubbiness valve body (1), is arranged at the valve gap (8) of valve body (1) upper end; Be arranged in the valve body (1), with the exhalation flap (2) of valve body (1) Spielpassung, two ends are embedded in the exhalation spring (4) between valve gap (8) and the exhalation flap (2); Suction flap (3) with exhalation flap (2) Spielpassung, be arranged at the suction spring seat (7) of the axis of guide (11) outer end that sucks flap (3), be arranged at the axis of guide (11) the other end outside, with the guide sleeve (12) of the axis of guide (11) contact matching, two ends are embedded in the suction spring (6) between guide sleeve (12) and the suction spring seat (7); Described suction flap (3) is provided with suction valve seal ring (15) with the Spielpassung place of exhalation flap (2); Described suction valve seal ring (15) is embedded in the suction valve seal groove (14) that sucks on the flap (3); The Spielpassung place of described exhalation flap (2) and valve body (1) is provided with exhalation valve seal ring (18), and this exhalation valve seal ring (18) is embedded in the exhalation valve seal groove (17) on the exhalation flap (2); It is characterized in that: described exhalation flap (2) is the plane with the sealing surface (19) at valve body (1) Spielpassung place, and the gap between described exhalation flap (2) and the valve body (1) is 0.08-0.25mm; The guiding height h of described exhalation flap (2) is 11-21mm; Described exhalation flap (2) is positioned at same plane with the sealing surface (19) at valve body (1) Spielpassung place with the lower end surface (20) that sucks flap (3).
2. tank vehicle mounted breathing type safety valve according to claim 1 is characterized in that: the bottom of described valve body (1) is provided with Air Filter (13).
3. tank vehicle mounted breathing type safety valve according to claim 2 is characterized in that: described exhalation valve seal groove (17) is single dovetail groove.
4. tank vehicle mounted breathing type safety valve according to claim 3 is characterized in that: described valve gap (8) is threaded with valve body (1) by internal thread or outside thread; Described valve gap (8) is provided with valve gap locking nut (5) with the joint of valve body (1).
5. tank vehicle mounted breathing type safety valve according to claim 4 is characterized in that: described suction spring seat (7) is threaded with the axis of guide (11); The outer end of described suction spring seat (7) is provided with tightening nut (10) or/and fixed pin (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101047621A CN100510492C (en) | 2006-10-19 | 2006-10-19 | Tank vehicle mounted breathing type safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101047621A CN100510492C (en) | 2006-10-19 | 2006-10-19 | Tank vehicle mounted breathing type safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101012894A CN101012894A (en) | 2007-08-08 |
| CN100510492C true CN100510492C (en) | 2009-07-08 |
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ID=38700571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101047621A Active CN100510492C (en) | 2006-10-19 | 2006-10-19 | Tank vehicle mounted breathing type safety valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN100510492C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425691A (en) * | 2011-11-29 | 2012-04-25 | 湘潭林海机械制造有限公司 | Spring-type breather valve |
| CN104595540A (en) * | 2013-10-30 | 2015-05-06 | 宁波市鄞州三盈机械有限公司 | Automatic breather valve machined through die-casting |
| CN108758044B (en) * | 2018-07-25 | 2024-06-18 | 江苏华燕船舶装备有限公司 | Breather valve for deck foam system |
| CN110259870A (en) * | 2019-06-28 | 2019-09-20 | 杭州金士顿实业有限公司 | Safety valve and its working method for seat damper |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691734A (en) * | 1985-05-21 | 1987-09-08 | Fort Vale Engineering Ltd. | Valve seals |
-
2006
- 2006-10-19 CN CNB2006101047621A patent/CN100510492C/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691734A (en) * | 1985-05-21 | 1987-09-08 | Fort Vale Engineering Ltd. | Valve seals |
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| Publication number | Publication date |
|---|---|
| CN101012894A (en) | 2007-08-08 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: XI'AN RAIL TRANSPORTATION EQUIPMENT LIMITED LIABI Free format text: FORMER OWNER: XIAN AUTOMOBILE FACTORY, CHINA BEICHE GROUP Effective date: 20080606 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20080606 Address after: Postcode of Xi'an rail transportation equipment Co., Ltd., three Town, Shaanxi City, Xi'an Province, China: 710086 Applicant after: Xi'an Rail Tank Traffic Equipment Co., Ltd. Address before: Xi'an vehicle factory, three Qiao Town, Shaanxi City, Xi'an Province, China Code: 710086 Applicant before: China North Locomotive and Rolling Stock Xi'an Rolling Stock Works |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Three Town Weiyang District 710086 Shaanxi city of Xi'an Province Patentee after: CRRC XI'AN CO., LTD. Address before: 710086 Xi'an City, Shaanxi Province, the town of Xi'an Rail Transit Equipment Co., Ltd., three Patentee before: Xi'an Rail Tank Traffic Equipment Co., Ltd. |